Quick treatment method for pipe blocking of cast-in-place pile

Abstract

The invention discloses a quick treatment method for pipe blocking of a cast-in-place pile. The quick treatment method comprises the steps that when pouring can not continue being conducted due to thefact that concrete blocks a pipe in the process of pouring cast-in-place pile concrete by adopting a guide pipe method, the concrete basically does not lose the fluidity and has the continuous pouring performance before being initially set, and a standby guide pipe is inserted into poured concrete at the depth about 1.5 m; and a submersible sewage pump is put into the standby guide pipe to removemud by suction, a lower port of a pouring hopper and an upper port of the standby guide pipe are fixedly connected, underwater concrete is poured again, in the process of continuously pouring the concrete, it is guaranteed that the remaining standby guide pipe sections are buried into the concrete at the depth no less than 2 m after a standby guide pipe section is dismounted every time, and afterconcrete pouring is finally finished, a reserved pipe head is more than 1 m higher than a normal pile of which a pipe is not blocked. According to the quick treatment method, a pipe blocking accidentcan be quickly treated, the success rate reaches 100%, and a treated pile foundation is an I-class pile through pile inspection. The treatment method has the advantages that the design scheme is notchanged, the construction period is not prolonged, safety and reliability are achieved, investment is low, and the technology can be easily grasped by construction technology personnel.

Description

technical field [0001] The invention relates to the construction field of civil engineering foundation projects such as bridges, water conservancy, ports, housing construction, etc., and specifically relates to a scientific and technical method for rapid treatment of cast-in-situ piles that are stuck in the process of concrete pouring, so as to avoid engineering quality accidents and greater economic losses . Background technique [0002] At present, with the rapid development of my country's economic construction, more and more large-scale civil engineering foundation projects such as bridges, water conservancy, ports, and housing construction have adopted deep foundation engineering, and the use of cast-in-place pile foundations is more common. [0003] Cast-in-situ pile is a kind of concealed project, and it is also the lifeline of the project. The quality of its pile formation directly affects the service life of the building. Dangerous bridges and dilapidated houses oc...

AI Technical Summary

Problems solved by technology

[0004] Pipe jams in the pile foundation during concrete pouring will lead to broken piles. Generally, remedial measures such as flushing piles in situ, or even doubling the piles to form shoulder beams are taken, which changes the design plan and delays the construction period. This kind of accident phenomenon in pile foundations common in construction

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